¥1,000,000 (Direct Cost : ¥1,000,000)

1. I collct Esrly Sue-ware's kilns and stady their relative chronolgical order. As a result, the Eariest Sue-ware's kilns are limited to the the kiln-group in North Kyushu which consists of Asakurakilns, Okugadani kiln in Okayama Prefecture, Sburouike-seigan kiln in Kgawa Prefecture, and Suita 32th kiln, Obadera kiln site and Ichsuka 2ed kiln in Osaka Prefecture.2. They were built in neary same time, but the origin of kilns in North Kyushu is difterent from that of others.3. I realize that in Suemura kiln group the earliest kiln is Obadera kiln site according to my chronological stdy on Sue-ware's from Obadera kiln site and other kilns in Suemura Seki kiln group. I name the eariest Sue-ware's from Obadera kiln site T G231 type which precedes T K73 type.4. My idea that T G231 type is oldest is supprted by the fact that the oldest Sue-ware's in Japan found from Kumeda-kofun Tombs and Doyama-kofun Tomb in Osaka Prefecture to T G231 type and T K73 type.5. I rstady the begining and expansion of Sue-ware production in T G231 stage, Sue-ware production system come directly from Korean Peninsula to Suemura Sue-ware kiln group, and then in O N46type stage that system expanded to many areae from there.